Kolkata Style Dum Biryani is a unique and flavorful biryani recipe from the city of Kolkata, India. It is made with fragrant basmati rice, succulent meat (chicken or mutton), and a blend of spices that give it a distinct flavor. The biryani is cooked in layers, with the rice and meat cooked separately and then layered together. It is then sealed and cooked on low heat, allowing the flavors to infuse and the meat to become tender. The result is a biryani that is aromatic, flavorful, and has a perfect balance of spices.